TY  - JOUR
T1  - On the Structure and Affinities of Guynia annulata, Dunc., with Remarks upon the Persistence of Palaeozoic Types of Madreporaria. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 19
SP  - 450
EP  - 451
PY  - 1870/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1870.0069
M3  - doi:10.1098/rspl.1870.0069
AU  - Duncan, P.
ER  -